last of the Guardians, Percy escapes his prison and manages to overthrow Amanda's control of Division, sending Ari and her into hiding, along with the last black box. Percy also manages to kill all members of Oversight and puts a plan into place to use plutonium to gain membership of an unknown group of powerful people. Having no other choice, Nikita and Michael decide to take the situation to the president, with the help of Ryan, who has been helping Nikita on her mission since season one. Alex reconciles with Nikita, after having finally brought down Semak and restored her father's company. While her allies attempt to stop Percy's most trusted man, Roan, from using the plutonium to blow up Washington, DC, Nikita and Michael infiltrate Division, managing to expose Percy of his corruption and evil deeds, ending his leadership over the organization. Percy is killed by Nikita after trying to escape, and Roan is killed by Alex before he could set off the plutonium. The vice president assigns Ryan as the new director of Division and gives Nikita the task of hunting down Amanda and the last of Division's agents who have gone rogue. Cast and characters Characters are listed in order of title credit and by appearance on the show. The series borrows many characters, or at least their names, from the 1997 television series La Femme Nikita, which was also based on the French film La Femme Nikita. Maggie Q portrays Nikita, the protagonist and a former spy and assassin who has gone rogue and now plans to bring down Division. Q also performs her own stunts. Shane West plays Michael, a Division operative who trained Nikita. He sees Division and its recruits as a kind of family to him, the complete opposite of Amanda, portrayed by Melinda Clarke, Division's psychologist, interrogator, and a master manipulator. Seymour Birkhoff, Division's computer genius and head technician, is portrayed by Aaron Stanford. The head of Division is Percy, played by Xander Berkeley. In the season one finale, the audience is introduced to a Senator Madeline Pierce, played by Alberta Watson, who also played the part of Madeline in the former La Femme Nikita television series (Madeline was that series' counterpart to Amanda). Lyndsy Fonseca portrays Alexandra "Alex" Udinov, a former sex slave and drug addict who was arrested after a robbery and later became Division's newest recruit. She is also